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Full text of "The Cambridge Natural History"

531

A.morphoc7iilus, J&hynchonycteris, Saccojpteryvc, Corm-ura,
and Diclidurus are other Neotropical genera of the same family.
The genus Taphozous J has a tail which perforates the Inter-
femoral membrane, appearing on Its upper surface ; It is capable
of being withdrawn. The premaxlliaries are cartilaginous. The
dentition Is I -J- C -J Pm -J| M H% The upper incisors often disappear,
Many species of the genus have a gular sac, opening anteriorly
between the jaws. This is better developed In the males. The
genus ranges from Africa through Asia to New Guinea and
Australia. There are some twelve species.
The genus Mblossus 2 has short legs and well- developed fibulae,
The tail Is thick and fleshy, and is prolonged far beyond the margin
of the Interfemoral membrane. The ears are united together
above the nose ; the tragus Is minute. The dentition Is I -J- or -|- C -J-
Pm -J- or  M . This genus, which Is confined to the tropical and
subtropical portions of America, has long and narrow wings. The
Bats can thus fly rapidly, twist about with ease, and capture
strongly-flying Insects. There are a large number of species.
Ny&tino-rfius Is an allied genus, and also has many species.
These range through both hemispheres. The chief differences from
Mblossus are that the premaxlllary bones are separate In front or
united by cartilage, and that the Incisors may be three in the
lower jaw.
Fam. 5. Phyllostomatidae.  The Bats of this family are ex-
tremely numerous and almost entirely confined to South America.
None of them occur outside the New World. There are some
thirty-five genera. The members of the family are to be distin-
guished by the presence of the nose leaf, by the well-developed
premaxillae, and by the possession of three phalanges by the
middle finger. They are large, and the tragus of the ear is well
developed.
Vampyri&s of South America contains the large species V. spec-
trum, which, mainly on account as it seems of its " forbidding
aspect," was supposed to be a bloodsucker. This genus has two
incisors on each side of the upper jaw.
The genus CHossopJiaga, represents another type of structure In
this family. The tongue is long and extensile, and Is much attenu-
ated towards the tip, where it Is covered with strong and recurved
papillae. This structure was at one time thought to indicate a
1 Dobson, JVoo. Zool, Soc. 1875, p. 546,                       2 IWd* 1876, p. 701,